How to set properties attributes in Java programmatically?

Question

I'm looking over sentry for java and it requires a properties file:

.level=WARN
handlers=net.kencochrane.raven.jul.SentryHandler
net.kencochrane.raven.jul.SentryHandler.dsn=https://<key>:<secret>@app.getsentry.com/<project>
net.kencochrane.raven.jul.SentryHandler.tags=tag1:value1,tag2:value2

It loads the file by: java -Djava.util.logging.config.file=/path/to/app.properties MyClass

I want to set the properties in java source; how do I do that?

It looks like I may be able to use the Properties class? Not sure though (Java isn't my primary language).

Do you want to set the properties into the file at runtime or to read the properties from the file at runtime? — Patrick, Nov 13 '15 at 16:01
Please see if the link helps you [Stack Overflow](http://stackoverflow.com/questions/5189914/setting-system-property) — Ketan, Nov 13 '15 at 16:01
this can also hepls you [writing to prop](http://www.mkyong.com/java/java-properties-file-examples/) — Patrick, Nov 13 '15 at 16:02

score 2 · Answer 1 · answered Nov 13 '15 at 16:09

If you want to set property dinamically at runtime, you may use following code:

Properties props = null;
FileInputStream fis = null;
String propFile = "path_to_your_file_with_properties";

try {
    fis = new FileInputStream(propFile);
    props.load(fis)
    props.setProperty("key", "value");
} catch (Exception e) {
    //handle exception here
} finally {
    //close FileInputStream
}

score 0 · Accepted Answer · answered Nov 13 '15 at 16:05

0

In Java you can set properties dynamically by using the System class , just doing for example System.setProperty("java.library.path","value_you_want"); you can achieve it.

answered Nov 13 '15 at 16:05

ΦXocę 웃 Пepeúpa ツ

47,427
17
69
97

How to set properties attributes in Java programmatically?

2 Answers2